問題詳情

25. A certain spherical asteroid has a mass of 3.5 x 1016 kg and a radius of 8.8 km. What is the minimumspeed needed to escape from the surface of this asteroid? (G = 6.67 x 10-11N● m2/kg2)
(A) 223 m/s
(B) 126 m/s
(C) 52 m/s
(D) 34 m/s
(E) 23 m/s.

參考答案

答案:E
難度:計算中-1
書單:沒有書單,新增